1 files changed, 56 insertions, 0 deletions
diff --git a/spec/javascripts/filtered_search/services/recent_searches_service_spec.js b/spec/javascripts/filtered_search/services/recent_searches_service_spec.js
new file mode 100644
index 00000000000..2a58fb3a7df
--- /dev/null
+++ b/spec/javascripts/filtered_search/services/recent_searches_service_spec.js
@@ -0,0 +1,56 @@
+import RecentSearchesService from '~/filtered_search/services/recent_searches_service';
+
+describe('RecentSearchesService', () => {
+  let service;
+
+  beforeEach(() => {
+    service = new RecentSearchesService();
+    window.localStorage.removeItem(service.localStorageKey);
+  });
+
+  describe('fetch', () => {
+    it('should default to empty array', (done) => {
+      const fetchItemsPromise = service.fetch();
+
+      fetchItemsPromise
+        .then((items) => {
+          expect(items).toEqual([]);
+          done();
+        })
+        .catch((err) => {
+          done.fail('Shouldn\'t reject with empty localStorage key', err);
+        });
+    });
+
+    it('should reject when unable to parse', (done) => {
+      window.localStorage.setItem(service.localStorageKey, 'fail');
+      const fetchItemsPromise = service.fetch();
+
+      fetchItemsPromise
+        .catch(() => {
+          done();
+        });
+    });
+
+    it('should return items from localStorage', (done) => {
+      window.localStorage.setItem(service.localStorageKey, '["foo", "bar"]');
+      const fetchItemsPromise = service.fetch();
+
+      fetchItemsPromise
+        .then((items) => {
+          expect(items).toEqual(['foo', 'bar']);
+          done();
+        });
+    });
+  });
+
+  describe('setRecentSearches', () => {
+    it('should save things in localStorage', () => {
+      const items = ['foo', 'bar'];
+      service.save(items);
+      const newLocalStorageValue =
+        window.localStorage.getItem(service.localStorageKey);
+      expect(JSON.parse(newLocalStorageValue)).toEqual(items);
+    });
+  });
+});